Shock-absorber.



A F. w. STIL-WILL. Y

SHOCK ABsonER. 5 y .Y APPLICATIN FILED MR. 24| 1917-y l v 15262,? l l Patented Apr. 16, 1918.

2 SHEETS-SHEET.

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SHOCK ABSORBER.

APPLICATION FILEDv MAR. 24, 191?.

Patented Alu-.16; 1918.

2 SHEETS-SHEET 2.

im iran FRED w. sTILwILL, orcrfrreaeo, iLLINQIS.

SI-IOQK-ABSORBER.

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'Specification of Letters Patent.

Patented err ,16, 1918 Application :liled March 24, 1817. Serial No. 157,070.

To all whom t lmay concern.'

Be it known that I, FRED W. Srinwrnn, a citizen of the United States, residing at Chicago, in the county of Cool; and State of Illinois, have invented certain new and `useful Improvements in Shoclr-Absorbers, .of which the following is a specification.

My invention relates to shock absorbers which are adapted to be applied to automobiles and the lilre and has `for its object the production of. a shock absorber which be interposed between the chassis andwheels, the shock-absorbing element being compressed when ,the chassis and wheels ap proach each other or when they rebound.

Another obj ect of my invention is to provide a shock absorber which may be applied universally to vehicles and other structures in which springs or other connecting means are employed.

In the accompanying drawings, I have shown the preferred embodiment of my invention and a modification thereof. Figures l, 2 and 3 illustrate the preferred embodiment of my invention interposed between the sections of an elliptical spring. Fig. l is an elevational view showing the shock absorber in normal position. Fig. 2 is a similar view showing the spring sections contracted and the shock absorbing member compressed. Fig. 3 is a transverse elevational view-taken on line 3 3 of Fig. l and similar to Figs. l and 2, but showing the spring sections in the lrebound position, the shock absorbing member again being compressed. Figs. 4, 5, 6 and 7 are views show` ine` a modiication of the connecting means employed in the shock absorber. Fig. 4 is a side elevational view showing an entire full elliptical spring and the shock absorber interposed between the sections thereof, all of the parts being in normal position. Figs. 5 and 6 are sectional'views taken on line @fz-a of Fig. 4 and showing the parts in the same position as shown in Figs. 2 and 3, respectively. Fig. 7 is a plan view ltaken o n line 7 7 of' Fig. 4.y

In the drawings, the full elliptical spring has its upper and lower sections indicated by the reference numerals 1 and 2 relspectively. Herein 'I have shownan exterior top plate 3 suitably secured to the top spring section las by a pair ,of U-Sphapedfljfdsygid the nuts 5. An exterior bottom plate 6 is similarly secured to the lower springsection 2. An upper plate 7 and alowerplate v8 lie between "the exterior 'plates 3 and 6 and approximately parallel thereto. Between lthe interior plates 7 and S ,is secured a ,shock absorbing Compression spring 9.

rlhe exterior top plate 3 is. suitably secured to the interior bottom plate .8 by means to be hereinafter described. The interiortop plate 7 is secured to the exterior bottoni plate 6 by a telescopingv connection. The bottom plate 6 has Yrising therefrom a guide member 10 of vhollow and square crossfsection (see Fig. 7). A piston or bolt l1 (Se Figs. A5 and 6) having at one end a head 12 slidable in the hollow poltOl 1.3 ofthe guide member l0, is limited in its Aupward move ment by the annular integral .collar portion 14 formed by the contracted endfof the guide. The other end ofthe piston is suitably secured to the interior .top plate 7. Herein yI have shown lthis stop ,plate adjustably and {Sldably Secured t0 theibolesnce the latter projects upwardly through the plate and carries a nut 1 5. l--Iereinlhave also shown the plate 7 recessed at 16 Z(see Fig. 6) and the nut seated therein. 'Ihe plate 3 has a central hole17 `therethrough see Figs. 4, 5 and 6) registering ,withthe recess 16 in which the nut 15 vis seated. These registering openingspermit the plates 3 and 7 to abut againsteach other without the nutv separating ythe plates. v

The lowerl interior plateS has a .hele 181 therein (see Figs-5and 6) .whichpreferahly is of the same outline as the hollow and polygonal cross-sectioned guide 10. The adjacent plates "6 andS are slidabl but 110D- rotatably movable withrespect to eachother. The interior plate Sis suitably connected to the top plate 3 in the following tmanner: Figs. 1 to 3, inclusive, show a toggle connection while Figs. 4to 7 inclusive showazslidable connection. In Figs. 1, 2 and 3the plate 3 and the plate 8 havev inwardly eX- tending projections or U-shaped ears upon which the toggle .links2() and 21 `are pivotally mounted. The` upper` links have one `end forked to .receive one Vend Q :the lower links 21,` the otherend of said links being pivetally. secured within .theU-shaped @medians 1.9- T0 :prevent links ffrarln' tirely straightening out, I provide each of the links 2l with a transversely extending stop lug 22 which bears against the forked ends of the links 20 and limits the inward and straightening movement of said links.

In Figs. 4: to 7 inclusive, I have shown a modified form of connection -between the plates 3 and 8. In this modification the inwardly extending projections or` ears 23 have perforated flanges 2st through which the bolts 25 are slidable. Each bolt upon its outer end carries a light compression spring 26 seated between the flange 24; and a nut 2l'.

From the drawings and foregoing description, it will be seen that the inwardly extending ears 19 or 23 forni guides for the compression spring 9. |Ihe plate 7 has its under side suitably formed as at 28 to form an annular guiding seat for the spring. It will also be seen that when the spring sections l and 2 are compressed, the plates 3 and 'l' and plates 8 and 6 are in contact whereby the spring 9 receives the compressional foice directly. 'Io minimize the impact, I have provided plates 6 and 7 with suitable buffers or cushioning devices 29 of rubber, fiber or other suitable material. Whenthe spring sections are expanding, the spring 9 receives the tensional force through the toggle links or the bolts and the telescoping connection in a compressional form.

Although I have shown my invention applied to an elliptical spring, I would have it understood that the device may be used in connection with other types of carriage springs.

While I have herein described and illustrated my invention in considerable detail, I would have it further understood that I will be limited only by the scope of the appended claims.

I claim as my invention:

1. A shock absorber having,'in combination, a pair of exterior plates, one of said plates having projecting ears and the other having a guiding hollow-telescoping projection, a pair of interior plates, one of said interior plates having projecting ears and an opening corresponding to said guiding projection and being non-rotatably slidable thereon, the other interior plate being abuttable against said exterior plate within the ears thereof,a spring between said interior plates and guided by said interior plate having ears, connecting means between said perforated plate and the exterior plate adjacent the other interior plate, and a telescoping connector between the other interior plateand the guiding exterior plate conn prising the interior guiding surface formed by said hollow projection, a kheaded boltslidable therein and limited in its movement by the contracted head of said projectionv and slidable through the other interior plate,

and adjusting means securing said other interior plate to said bolt.

2. A shock absorber having, in combination, a pair of exterior plates, one of said plates having projecting ears and the other having a guiding hollow-telescoping projection extending inwardly, a pair of interior plates, one of said interior plates having inwardly projecting ears and an opening corresponding to said guiding projection and being non-rotatably slidable thereon, the other interior plate being abuttable against said exterior plate within the ears thereof,

a spring between and guided by said interior plates, a connection between said perforated plate and the exterior plate having ears, and a telescoping connector between the other interior plate and the guiding exterior plate comprising the interior guiding surface formed by said hollow projection and a headed bolt slidable therein and limited in its inward movement by the contracted end of said projection, said bolt being secured to the other interior plate.

3. A shock absorber having, in combination, a pair of exterior plates, one of said plates having inwardly projecting ears and the other having a guiding projection extending inwardly, a pair of interior plates, one of said interior plates having projecting ears and an opening corresponding to said guiding projection and being non-rotatably slidable thereon, the other interior plate being abuttable against said exterior plate within said ears thereof, a spring between said interior plates and guided by said interior plate having ears, and connections between the interior plates and the exterior plate adjacent the other interior plate.

t. A shock absorber having, in combination, a pair of exterior plates, one of said plates having projecting ears and the other` having a guiding projection, a pair of interior plates, one of said interior plates having projecting ears and an opening corresponding to said guiding projection and being non-rotatably slidable thereon, the other other interior plate, and a telescoping con-y nector betweenV the other interior plate and the guiding exterior plate. Y

5. A shock absorber having, in combination, a pair of exterior plates, a pair of interior plates parallel therewitli,means between said interior plates compressible when said exterior plates approach or recede fromVV each other, a connection between one of said interior plates and the exterior plateadjacent the .other interior plate, toggle-connecting means between the other plates comprising a'pair :of links"pivotallysecured'to the other plates andpivoted to eachv other, and' an abutmentupon one of said links abutting against the other link to limit the movement of the links.

6. A shock absorber having,"in combination, a pair'of exterior plates, one of said against said exterior plate within the earsV thereof, a spring 'between and guided by said interior plates, a toggle connection between said perforated plate and the exterior plate having ears, and a telescoping'con-" nector betweenv the' other interior plate and the guiding exterior plate comprising the interior guiding surface formed by said hollow projection and a headed bolt slidable therein and limited in its movement' by the contracted end of said holow projection, said bolt being secured to the other interior plate.

7. A shockabsorber having, in combination, a pair of exterior plates, one of said plates having a guiding projection extending inwardly, a pair of interior plates, one of said interior plates'having an opening therethrough corresponding to said guiding projection and being non-rotatably slidable thereon, a spring between said interior plates, a toggle connection between the exterior plate adjacent the other interior plate and said interior plate, and a telescoping connector betwen said other plates.

8. A shock absorber having, in combination, a pair of exterior plates, one of said plates having inwardly projecting ears, a pair of interiorI plates, one of said interior plates having inwardly projecting ears, the other interior plate being abuttable against said exterior plate within said ears thereof, a spring between said interior plates, and guided by said ears on the interior plate, connections between said plates having ears, and a telescoping connector between the other plates.

9. A shock absorber having, in combination, a pair of exterior plates, one of said plates having a guiding projection extending inwardly, a pair of interior plates, one of said interior plates having an opening corresponding to said guiding projection and being non-rotatably slidable thereon, a spring between said interior plates, and connections between said interior plates and the exterior plate adjacent the other interior plate.

10. A shock absorber having, in combination, a pair of exterior plates, one of said plates having a guiding projection extending'inwardly, a pairs-of interiorplates', Jne'fy of said interior plates' having an opening' corresponding to said guiding projection and 'being non-rotatably slidable thereon, and vcompres'sional nieans between said interior plates in concentric relation with respect to said guiding projection.

11. A shock absorber having, in combination,"a pair of exterior plates, one of said plates havingv a guiding projection extending inwardly, a pair of interior plates, one

of said interior plates having an opening corresponding to said guiding projection and being non-rotatablyslidable thereon, a spring between lsaid interior plates, .a connection between said perforated plate and the exterior plate opposite the other interior plate,"and a telescoping connector between they exterior plate having the projection and the other interior plate.

12. A shock absorber having, in combination, a pair of exterior plates, one of said plates having inwardly projecting ears, a pair of interior plates, one of said interior plates having inwardly projecting ears, the

other interior plate being abuttable against"V the exterior plate within said ears thereof, compressional means between said interior plates guided by said inwardly projecting ears on the interior plate, a toggleV connection between said plates having ears, and 'a connection between the other plates.

13. A shock absorber having, in combination, a pair of exterior plates, one of said plates having projecting ears and the other having a guiding projection, a pair of interior plates, one of said interior plates having projecting ears and an opening corresponding to said guiding projection and being non-rotatably slidable thereon, the other interior plate being abuttable against said exterior plate within the ears thereof, a spring between said interior plates and guided by said interior plate having ears, a toggle connection between said perforated plate and the exterior plate adjacent the other interior plate, and aI telescoping connection between the other interior plate and the guiding exterior plate.

111. A shock absorber having, in combination, a pair of exterior plates, a pair of interior plates parallel therewith, means between said interior plates coinpressible when said exterior plates approach or recedeJ from each other, a connection between one of said interior plates and the exterior plate adjacent the other interior plate, and toggle-linkV connections between the other interior plate and the other exterior plate.

15. A shock absorber having, in combination, a pair of exterior plates, a pair of interior plates parallel therewith, means Vbetween said interior plates compressible when said exterior plates approach or recede from each other, a telescoping connection between one of said interior plates and the exterior plate adjacent the other interior plate, and a toggle connection betwee-n the other plates.

i6. A shock absorber having, in combination, a pair of exterior'plates, one of said plates having a guiding projection extending inwardly, a pair of interior plates, one of said interior plates having an opening therethrough corresponding to said guiding projection and being non-rotatably slidable thereon, a spring between said interior plates, and connections between said interior plates and the exterior plate adjacent the other interior plate.

17. A shock absorber having, in eombination, a pair of exterior plates, one of said plates having inwardly projecting ears, a pair of interior plates, one ot said interior plates having inwardly projecting ears, the other interior plate being abuttable against said exterior plate within said ears thereof, a spring between said interior plates guided by said ears on the interior plate and an annular seat formed in the other interior plate, a connection between the exterior plate adjacent the other interior plate and said interior plate, and a connection between said other plates.

18. A shock absorber having, in combination, a pair of exterior plates, one of said plates having inwardly projecting ears, a pair of interior plates, one of said interior plates having inwardly projecting ears, the other interior plate being abuttable against the exterior plate within said ears thereof, compressional means between said interior plates guided by said inwardly projecting ears on the interior plate, a connection between said plates having ears, and another connection between the other plates.

19. A shock absorber having, in combination, a pair of exterior plates, one of said plates having inwardly projecting ears, a pair or interior plates, one of said interior plates having inwardly projecting ears, the other interior plate abutting against the eX- terior plate having inwardly projecting ears, compressional means between said interior plates and guided by said inwardly projecting ears, connections between said plates having ears, and other connecting means between the other two plates.

in testimony whereof, l have hereunto set my hand.

FRED lil. STILVLL.

Copies of this patent may be obtained ter five cents each, by addressing the Commissioner of retentir,

Washngten, E., G3 

